Glass-mold-filling apparatus



W; G. BERGMAN GLiss MOLD FILLING APPARATUS Filed Dec. 24. 1919 2 shuts-snm 1 `sept, 22, 1925. 1,554,195

. W G BERGMAN GLASS MOLD FILLING APFARATUSA Filed Dem 24. 1919 2 sxmtvsnm 2 and shown-in the accompanying. drawings Patented Sept. 22, 192.5.

UNI-TED sTATEs PATENT OFFICE.

'WILLIAM G. BERGMAN, OIF TOLEDG,v GHIO.

GLASSMOLD-FILLING APPARATUS.

Application filed December 24, 1.919.. Serial No. 347,205.

ties, jars and like articles. The' main object of the invention is to provide a xnold filling devicelcomprised of few, .Simple and inexpensive parts, which will operate automatically', in an accurate and ellicient manner, in connection with any culinary glass melting furnace..

A further object is to provide means whereby various designs, lengths and weightsv of artielescan bev-made uninterruptedly and lwithoutchange `in the filling;r apparatus, avoiding common flowing devices or hand gatherers. I

A still further object iste control the flow of glass by a partial vacuum or suction in connection with an air compressing system whereby the glass is retarded, retracted or forced forward under pressure as required.

' Other important objeetsvare in its economy et both floor space and l'ucl.. as well as initial cost of construction. I

-These and other like objects, which will:

hecome more fully evident as theldescription proceeds, are attained bythe novel construction and combination ol parts, principles and vprocesses hereinafter `described illustrative. of preferred embodiments of the invention', and in .whieh.- l

Figure 1 isa vertical sectional view showing the device constructed in accordance with the invention.

Figure Z is a transverse sectional view taken substantially on line .5-5 of Figure l.

Figure ay fragmentary'vertical seccional view taken substantially on line 6 6 of Figure 1.

Figure 4 a horizontal sectional view taken on. line f2-7 of Figure 1.

Figure is a partial front elevational and vertical sectionalv view taken substantially ou line 8-8ofili`igure 1. f

Throughout the several ligeros the 11u-- inerallldesignates thsfsiaif-y wall at' au ordinary L,glassIguilt-ling or reusing; furnace.

Engaged rigidly with the wall 2l) is an extension haringr lau openingr 2l, leading out to the filling apparatus tor the passage ot glass heated to a fluid state. A skimmer har 24 is fixed at the entrance to the opening 2l preventing foreign floating matter from "entra-ing;I the filling apparatus. A chamber 27, i'iexmitting` heat to enter'trom the corresponding opening' 9.8 in the furnace Wallis located between the opening 2l and vaj block 29, acting as a cover for the raised portion 3'()V of the extension 25.

A clrcular well eonnnunicatmg with vtheopening 21,`is formed in the extension,

the well terminating in a semi-spherical recess 36, from which lleads a relatively small. sinuous channel 37, curved downwardly and toward the front, as at 37. where there is a. tap hole 38 normally lilled hva clay plug til) which can be removed, thereby draining the channel when desired.

'Thechannel then curves upward.. us al 87, into the projectingr portion l() ol the extension, and enters an exit. nozzle 75A .l'orming a part of the projection ill). the nozzle 4registering with the mold M.

The molten glass is forced through the channel and nozzle into the mold hy an injector 58 comprised of a cylindrical incur berpassing centrally downward into the circular Well 35 from the block 29. on which it is supported hyan enlarged head of).

Due to the viscosity ol the glass und slight difference in the temperature helween the recess 36 and exil nozzle 75. the glass will flow with greater euse through the entrain e to the channel 37. than it will return through the nozzle 75. lt if: this 'fuelv that permits use of the torni of injector us shown in Fie ure l.

The injector 5R is` l'orluefl ol' oue'pirre. the cap or valve beingfr omitted and the rounded end 752 of the injector hody positionedv relatively close to the holten] ot' the recess 36. and formed with the rhamher G5' from which. Aextends a passage Til leading to the entrance ot the channel 37. whiehds so formed andv positioned as to Feed hy gravity to the exit nozzle 75. ,The u a ier, end of the injector' is connect-ed hy a. pipe 6T toa suitable apparatus, not shown, which is utilized to alternately create a partial vacuum and a pressure in the chamber 65.

` "Surrounding this nozzle is a chamber substantially pear shaped and open at its lll) bottom 77 so as to permit fragments of glass,- as fins from the molds, to pass out unobf structedly and be returned to the furnace.

The heat chamber 76 is connected by a pair of iiues 80, with the furnace wall open A ing 28 and these fines are provided with `be discharged through the exit nozzle 7 5 into the mold m. i Obviously the alternate creation of a suction and air pressure in the chamber 65 controls the delivery of vthe glassin the mold and it will be clear that :the glassl is maintained in a workable state and that no loss occurs,either of time or material. v

From the foregoing it will be obvious that in addition to the operation of the injector the'force of gravity is employed 1n v forcing the glass into the mold and that the injector Vcan be so operated as to hold the glass inl suspension without allowing it to run in greater quantity than is desired into the mold.

It will be understood thatrany means may be used for producing an alternate compression or suction of the air within the 'mjector andthat many modifications of the structure may be made Within the scope of the claims hereto appended.

rIt is' also clearly obvious that such filling `apparatus as are herein described may be used in connectionwith ordinary forms of glass melting furnaces and supply glass molds operated bv machines of common-or special type2 wholly avoiding hand gathering, measuring, use of extra fuel, and loss` of material.

AWhile I have shown'myapparatus in con,- nection with a mould it might also be used for discharging glass into .other receptacles, as for instance, a measuring device adapted to receive a measured quantity of glass.

Having thus described my invention and set forth the manner of its construction,

application andvuse, what I claim as new and desire to secure by Letters Patent is :e

i. In a glass mold filling apparatus, a chambered body engaged with the furnace, a nozzle adapted to discharge melted glass intoa mold` an internal conduit formed intherein provided withv a cylindrical recessy in communicationwith said glass furnace, a cylinder mounted in said extension and projecting into said recess, said vcylinder having an internal chamber, means to produce suction and pressure alternately vin said internal chamber,v a nozzle adapted to discharge molten glass to av mold, a conduitv establishing communication between said.

nozzle and the base of said vcylindrical recess and said cylinder provided` `with a conduit communicating with said internal chamber and first named conduit and of smaller cross sectional area than' the area of said internal chamber wherebyl an injector effect is produced by the moving co1- umn of molten glass in its passage from said internal chamber. j

3. The combination with a glass furnace of a glass mold filling apparatus comprising an extension in engagement wtih said 1furnace, said extension having a chamber therein 'provided with an cylindrical recess in communication with said glass furnace, a cylinder mounted .in 'said extension and projecting into said recess, said cylinder having an internal chamber, means to prolduce suction and pressure alternately in said internal chamber` a nozzle adapted to discharge molten glass to a mold, a conduit establishing communication between saidnozzle and the base of said cylindrical recess, said cylinder provided with a conduit communicating with said internal chamber and first named conduit and ofsmaller crosssectional area than the area of said internal chamber whereby an injector effect is produced by the moving column of molten glass in its passage from said internal chamber, and the adjacent ends of said' conduits being arranged j n spaced axial alignment to provide a gap through' which the 'molten glass is drawn by Jthe suction produced in' said internal chamber.

In testimony whereof I .have aiiiied my signature.

WILLIAM e., BERGMN; 

